Home / 90,150.60-135,228.96-30,985.86

Finding the Fourth Proportional to 90,150.60, 135,228.96 and 30,985.86

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Solution

The fourth proportional to 90,150.60, 135,228.96 and 30,985.86 is: 46,479.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,150.60 : 135,228.96 = 30,985.86 : x
  2. Step 2: Convert to fraction form
    90,150.60/135,228.96 = 30,985.86/x
  3. Step 3: Cross multiply
    90,150.60x = 135,228.96 × 30,985.86
  4. Step 4: Simplify right side
    90,150.60x = 4,190,185,622.51
  5. Step 5: Solve for x
    x = 4,190,185,622.51/90,150.60
  6. Step 6: Final answer
    x = 46,479.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.